Electronic absorption spectra were obtained using a Beckman ACTA CIII ultraviolet-visible linear wavelength spectrophotometer and a Beckman DK-2 spectrophotometer. An Aminco-Bowman 8202 spectrophotofluorometer was employed for fluorescence measurements, and mass spectra were recorded using an AEI MS9 mass spectrometer equipped with a solid sample probe inlet system. The general procedure descri...

introduction the purpose of the current study was to determine optical sensitivity of n-isopropyl acrylamide nipam and polyacrylamide gelatin and tetrakis hydroxymethyl phosphoniun chloride (pagat) polymer gels for different wavelength of visible light spectrum applied in optical computed tomography method. materials and methods nipam and pagat polymer gels with conventional formulations used f...

Background: Due to rapid advances in modern technologies such as telecommunication technology, the world has witnessed an exponential growth in the use of digital handheld devices (e.g. smartphones and tablets). This drastic growth has resulted in increased global concerns about the safety of these devices. Smartphones, tablets, laptops, and other digital screens emit high levels of short-wav...

In the present study, gold (Au) and silver (Ag) nanoparticles (NPs) were synthesized from aqueous extracts of Opuntia dillenii, characterized by various advanced techniques investigated for antibacterial antifungal potential. Phytochemical screening O. dillenii showed presence alkaloids, betacyanin, saponins, tannins, flavonoids, phlobatannins. The characterizations metal NPs performed such as ...

Measurement methods for determining the density of compressed materials, being a critical quality attribute, provide an important parameter successful processing. In this study, novel approach was developed compacts using ultraviolet–visible spectrophotometry. The assumption within context that change in affects corresponding color information compact. From obtained spectra visible range, compa...

In this report, ZnO nanoparticles (NPs) was synthesized by chemical method using Zinc Acetate dehydrate [Zn(CH3COO)2.2H2O)] as precursors and Ethanol distilled water solvent. Sodium hydroxide (NaOH) used to maintain the pH helps establish NPs. The NPs are characterized XRD, UV-visible spectroscopy SEM image analysis. XRD characterization gives polycrystalline nature of with size ~23 nm ~27 calc...

A dye-sensitized solar cell (DSSC) device using Mg-doped Zn thin films as photoanode and fruit extract of rose myrtle (Rhodomyrtus tomentosa) the natural dye was investigated. The effect annealing temperature (400-550°C) on systematically studied an X-ray diffractometer (XRD), UV-Visible Near Infrared (UV-Vis NIR) Spectrophotometer, scanning electron microscopy (SEM), energy dispersive spectros...